I had the Corgi Scorpion, which had a spring operated system to shoot little plastic shells, sort of semi-automatic. It was the last toy "tank" (everyone knows the Scorpion isn't a tank!) I ever bought, when I was about 13 or so.
And what about the Corgi aircraft - not the new model-style ones, but the old toy ones? Fabulous! I had them all, the Spit I with an electric motor, like the Bf109e (trop), and the Hurricane II with a clicking wheel built into the fuselage, to simulate gunfire... and the Ju87 with dropped its bomb! That was the very best! I lay awake ALL NIGHT one Christmas eve, so excited I couldn't sleep! I must have been 9 or 10, and I knew what I was getting the next morning! Fantastic toys.